/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 11:30:30,070 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 11:30:30,135 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 11:30:30,141 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 11:30:30,141 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 11:30:30,170 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 11:30:30,171 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 11:30:30,171 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 11:30:30,171 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 11:30:30,173 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 11:30:30,173 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 11:30:30,173 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 11:30:30,174 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 11:30:30,174 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 11:30:30,174 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 11:30:30,174 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 11:30:30,174 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 11:30:30,175 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 11:30:30,175 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 11:30:30,175 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 11:30:30,175 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 11:30:30,176 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 11:30:30,176 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 11:30:30,176 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 11:30:30,176 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 11:30:30,176 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 11:30:30,176 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 11:30:30,177 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 11:30:30,177 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 11:30:30,177 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 11:30:30,177 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 11:30:30,177 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 11:30:30,177 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 11:30:30,177 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 11:30:30,178 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 11:30:30,178 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 11:30:30,178 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 11:30:30,178 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 11:30:30,178 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 11:30:30,178 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 11:30:30,179 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 11:30:30,179 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 11:30:30,179 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 11:30:30,179 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 11:30:30,179 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 11:30:30,179 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 11:30:30,179 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 11:30:30,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 11:30:30,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 11:30:30,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 11:30:30,359 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 11:30:30,359 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 11:30:30,361 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2023-12-25 11:30:31,462 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 11:30:31,679 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 11:30:31,679 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2023-12-25 11:30:31,693 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdde39f1f/0e107c5f49f84504981002ba03f11dd6/FLAGc2db33842 [2023-12-25 11:30:31,705 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdde39f1f/0e107c5f49f84504981002ba03f11dd6 [2023-12-25 11:30:31,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 11:30:31,708 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 11:30:31,709 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 11:30:31,709 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 11:30:31,712 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 11:30:31,713 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 11:30:31" (1/1) ... [2023-12-25 11:30:31,714 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fa6212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 11:30:31, skipping insertion in model container [2023-12-25 11:30:31,714 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 11:30:31" (1/1) ... [2023-12-25 11:30:31,761 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 11:30:32,003 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[13867,13880] [2023-12-25 11:30:32,071 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 11:30:32,096 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 11:30:32,216 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[13867,13880] [2023-12-25 11:30:32,259 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 11:30:32,275 INFO L206 MainTranslator]: Completed translation [2023-12-25 11:30:32,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 11:30:32 WrapperNode [2023-12-25 11:30:32,276 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 11:30:32,277 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 11:30:32,277 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 11:30:32,277 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 11:30:32,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 11:30:32" (1/1) ... [2023-12-25 11:30:32,302 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 11:30:32" (1/1) ... [2023-12-25 11:30:32,360 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1415 [2023-12-25 11:30:32,361 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 11:30:32,361 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 11:30:32,361 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 11:30:32,361 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 11:30:32,370 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 11:30:32" (1/1) ... [2023-12-25 11:30:32,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 11:30:32" (1/1) ... [2023-12-25 11:30:32,380 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 11:30:32" (1/1) ... [2023-12-25 11:30:32,395 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-25 11:30:32,395 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 11:30:32" (1/1) ... [2023-12-25 11:30:32,396 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 11:30:32" (1/1) ... [2023-12-25 11:30:32,409 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 11:30:32" (1/1) ... [2023-12-25 11:30:32,434 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 11:30:32" (1/1) ... [2023-12-25 11:30:32,437 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 11:30:32" (1/1) ... [2023-12-25 11:30:32,490 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 11:30:32" (1/1) ... [2023-12-25 11:30:32,495 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 11:30:32,495 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 11:30:32,495 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 11:30:32,495 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 11:30:32,496 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 11:30:32" (1/1) ... [2023-12-25 11:30:32,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 11:30:32,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 11:30:32,520 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-25 11:30:32,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 11:30:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 11:30:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 11:30:32,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 11:30:32,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-25 11:30:32,701 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 11:30:32,703 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 11:30:33,373 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 11:30:33,422 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 11:30:33,423 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-25 11:30:33,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 11:30:33 BoogieIcfgContainer [2023-12-25 11:30:33,423 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 11:30:33,425 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 11:30:33,425 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 11:30:33,427 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 11:30:33,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 11:30:31" (1/3) ... [2023-12-25 11:30:33,428 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ca04840 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 11:30:33, skipping insertion in model container [2023-12-25 11:30:33,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 11:30:32" (2/3) ... [2023-12-25 11:30:33,429 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ca04840 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 11:30:33, skipping insertion in model container [2023-12-25 11:30:33,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 11:30:33" (3/3) ... [2023-12-25 11:30:33,430 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2023-12-25 11:30:33,442 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 11:30:33,442 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 11:30:33,485 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 11:30:33,492 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5ab207de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 11:30:33,492 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 11:30:33,500 INFO L276 IsEmpty]: Start isEmpty. Operand has 349 states, 347 states have (on average 1.792507204610951) internal successors, (622), 348 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:33,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-25 11:30:33,516 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 11:30:33,517 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 11:30:33,517 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 11:30:33,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 11:30:33,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1253843658, now seen corresponding path program 1 times [2023-12-25 11:30:33,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 11:30:33,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1201116591] [2023-12-25 11:30:33,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 11:30:33,537 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:33,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 11:30:33,544 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 11:30:33,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-25 11:30:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 11:30:33,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 11:30:33,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 11:30:33,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 11:30:33,835 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 11:30:33,835 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 11:30:33,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1201116591] [2023-12-25 11:30:33,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1201116591] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 11:30:33,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 11:30:33,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 11:30:33,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142122646] [2023-12-25 11:30:33,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 11:30:33,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 11:30:33,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 11:30:33,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 11:30:33,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 11:30:33,874 INFO L87 Difference]: Start difference. First operand has 349 states, 347 states have (on average 1.792507204610951) internal successors, (622), 348 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:33,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 11:30:33,978 INFO L93 Difference]: Finished difference Result 651 states and 1126 transitions. [2023-12-25 11:30:33,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 11:30:33,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2023-12-25 11:30:33,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 11:30:33,990 INFO L225 Difference]: With dead ends: 651 [2023-12-25 11:30:33,990 INFO L226 Difference]: Without dead ends: 490 [2023-12-25 11:30:33,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 11:30:33,995 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 267 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 11:30:33,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 1142 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 11:30:34,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2023-12-25 11:30:34,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 487. [2023-12-25 11:30:34,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 486 states have (on average 1.654320987654321) internal successors, (804), 486 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:34,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 804 transitions. [2023-12-25 11:30:34,043 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 804 transitions. Word has length 117 [2023-12-25 11:30:34,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 11:30:34,044 INFO L495 AbstractCegarLoop]: Abstraction has 487 states and 804 transitions. [2023-12-25 11:30:34,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:34,044 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 804 transitions. [2023-12-25 11:30:34,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-25 11:30:34,047 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 11:30:34,048 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 11:30:34,054 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-25 11:30:34,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:34,252 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 11:30:34,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 11:30:34,252 INFO L85 PathProgramCache]: Analyzing trace with hash -705528010, now seen corresponding path program 1 times [2023-12-25 11:30:34,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 11:30:34,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [650882730] [2023-12-25 11:30:34,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 11:30:34,254 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:34,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 11:30:34,255 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 11:30:34,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-25 11:30:34,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 11:30:34,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 11:30:34,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 11:30:34,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 11:30:34,620 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 11:30:34,620 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 11:30:34,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [650882730] [2023-12-25 11:30:34,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [650882730] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 11:30:34,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 11:30:34,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 11:30:34,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863845525] [2023-12-25 11:30:34,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 11:30:34,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 11:30:34,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 11:30:34,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 11:30:34,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 11:30:34,623 INFO L87 Difference]: Start difference. First operand 487 states and 804 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:34,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 11:30:34,680 INFO L93 Difference]: Finished difference Result 1431 states and 2359 transitions. [2023-12-25 11:30:34,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 11:30:34,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2023-12-25 11:30:34,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 11:30:34,685 INFO L225 Difference]: With dead ends: 1431 [2023-12-25 11:30:34,685 INFO L226 Difference]: Without dead ends: 954 [2023-12-25 11:30:34,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 11:30:34,688 INFO L413 NwaCegarLoop]: 554 mSDtfsCounter, 1569 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1569 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 11:30:34,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1569 Valid, 1094 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 11:30:34,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2023-12-25 11:30:34,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 952. [2023-12-25 11:30:34,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 951 states have (on average 1.6424815983175605) internal successors, (1562), 951 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:34,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1562 transitions. [2023-12-25 11:30:34,715 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1562 transitions. Word has length 120 [2023-12-25 11:30:34,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 11:30:34,715 INFO L495 AbstractCegarLoop]: Abstraction has 952 states and 1562 transitions. [2023-12-25 11:30:34,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:34,716 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1562 transitions. [2023-12-25 11:30:34,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-25 11:30:34,719 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 11:30:34,719 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 11:30:34,725 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-25 11:30:34,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:34,926 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 11:30:34,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 11:30:34,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1991464261, now seen corresponding path program 1 times [2023-12-25 11:30:34,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 11:30:34,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [717268457] [2023-12-25 11:30:34,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 11:30:34,928 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:34,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 11:30:34,930 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 11:30:34,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-25 11:30:35,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 11:30:35,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 11:30:35,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 11:30:35,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 11:30:35,158 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 11:30:35,158 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 11:30:35,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [717268457] [2023-12-25 11:30:35,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [717268457] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 11:30:35,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 11:30:35,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 11:30:35,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626889860] [2023-12-25 11:30:35,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 11:30:35,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 11:30:35,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 11:30:35,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 11:30:35,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 11:30:35,160 INFO L87 Difference]: Start difference. First operand 952 states and 1562 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:35,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 11:30:35,186 INFO L93 Difference]: Finished difference Result 1804 states and 2990 transitions. [2023-12-25 11:30:35,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 11:30:35,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2023-12-25 11:30:35,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 11:30:35,190 INFO L225 Difference]: With dead ends: 1804 [2023-12-25 11:30:35,191 INFO L226 Difference]: Without dead ends: 1228 [2023-12-25 11:30:35,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 11:30:35,192 INFO L413 NwaCegarLoop]: 584 mSDtfsCounter, 248 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 11:30:35,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 1126 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 11:30:35,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1228 states. [2023-12-25 11:30:35,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1228 to 1208. [2023-12-25 11:30:35,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1208 states, 1207 states have (on average 1.6470588235294117) internal successors, (1988), 1207 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:35,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1988 transitions. [2023-12-25 11:30:35,217 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1988 transitions. Word has length 121 [2023-12-25 11:30:35,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 11:30:35,217 INFO L495 AbstractCegarLoop]: Abstraction has 1208 states and 1988 transitions. [2023-12-25 11:30:35,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:35,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1988 transitions. [2023-12-25 11:30:35,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-25 11:30:35,219 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 11:30:35,219 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 11:30:35,241 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-25 11:30:35,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:35,423 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 11:30:35,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 11:30:35,424 INFO L85 PathProgramCache]: Analyzing trace with hash -603318676, now seen corresponding path program 1 times [2023-12-25 11:30:35,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 11:30:35,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1591406206] [2023-12-25 11:30:35,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 11:30:35,425 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:35,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 11:30:35,426 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 11:30:35,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-25 11:30:35,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 11:30:35,542 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 11:30:35,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 11:30:35,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 11:30:35,678 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 11:30:35,679 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 11:30:35,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1591406206] [2023-12-25 11:30:35,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1591406206] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 11:30:35,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 11:30:35,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 11:30:35,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072558238] [2023-12-25 11:30:35,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 11:30:35,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 11:30:35,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 11:30:35,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 11:30:35,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 11:30:35,680 INFO L87 Difference]: Start difference. First operand 1208 states and 1988 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:35,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 11:30:35,738 INFO L93 Difference]: Finished difference Result 3570 states and 5875 transitions. [2023-12-25 11:30:35,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 11:30:35,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2023-12-25 11:30:35,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 11:30:35,746 INFO L225 Difference]: With dead ends: 3570 [2023-12-25 11:30:35,746 INFO L226 Difference]: Without dead ends: 2373 [2023-12-25 11:30:35,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 11:30:35,748 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 1544 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 11:30:35,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1544 Valid, 1110 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 11:30:35,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2373 states. [2023-12-25 11:30:35,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2373 to 2371. [2023-12-25 11:30:35,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2371 states, 2370 states have (on average 1.6375527426160337) internal successors, (3881), 2370 states have internal predecessors, (3881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:35,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2371 states to 2371 states and 3881 transitions. [2023-12-25 11:30:35,790 INFO L78 Accepts]: Start accepts. Automaton has 2371 states and 3881 transitions. Word has length 122 [2023-12-25 11:30:35,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 11:30:35,791 INFO L495 AbstractCegarLoop]: Abstraction has 2371 states and 3881 transitions. [2023-12-25 11:30:35,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:35,791 INFO L276 IsEmpty]: Start isEmpty. Operand 2371 states and 3881 transitions. [2023-12-25 11:30:35,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-25 11:30:35,794 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 11:30:35,794 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 11:30:35,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-25 11:30:35,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:35,997 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 11:30:35,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 11:30:35,998 INFO L85 PathProgramCache]: Analyzing trace with hash -798035803, now seen corresponding path program 1 times [2023-12-25 11:30:35,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 11:30:35,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1609479997] [2023-12-25 11:30:35,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 11:30:35,999 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:35,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 11:30:36,000 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 11:30:36,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-25 11:30:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 11:30:36,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 11:30:36,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 11:30:36,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 11:30:36,184 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 11:30:36,184 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 11:30:36,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1609479997] [2023-12-25 11:30:36,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1609479997] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 11:30:36,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 11:30:36,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 11:30:36,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212692883] [2023-12-25 11:30:36,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 11:30:36,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 11:30:36,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 11:30:36,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 11:30:36,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 11:30:36,186 INFO L87 Difference]: Start difference. First operand 2371 states and 3881 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:36,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 11:30:36,217 INFO L93 Difference]: Finished difference Result 3963 states and 6555 transitions. [2023-12-25 11:30:36,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 11:30:36,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2023-12-25 11:30:36,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 11:30:36,225 INFO L225 Difference]: With dead ends: 3963 [2023-12-25 11:30:36,226 INFO L226 Difference]: Without dead ends: 2861 [2023-12-25 11:30:36,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 11:30:36,228 INFO L413 NwaCegarLoop]: 767 mSDtfsCounter, 237 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 11:30:36,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 1294 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 11:30:36,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2861 states. [2023-12-25 11:30:36,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2861 to 2859. [2023-12-25 11:30:36,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2859 states, 2858 states have (on average 1.6434569629111266) internal successors, (4697), 2858 states have internal predecessors, (4697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:36,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2859 states to 2859 states and 4697 transitions. [2023-12-25 11:30:36,276 INFO L78 Accepts]: Start accepts. Automaton has 2859 states and 4697 transitions. Word has length 123 [2023-12-25 11:30:36,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 11:30:36,277 INFO L495 AbstractCegarLoop]: Abstraction has 2859 states and 4697 transitions. [2023-12-25 11:30:36,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:36,277 INFO L276 IsEmpty]: Start isEmpty. Operand 2859 states and 4697 transitions. [2023-12-25 11:30:36,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-25 11:30:36,279 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 11:30:36,279 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 11:30:36,287 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-25 11:30:36,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:36,485 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 11:30:36,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 11:30:36,485 INFO L85 PathProgramCache]: Analyzing trace with hash -258712133, now seen corresponding path program 1 times [2023-12-25 11:30:36,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 11:30:36,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [138099182] [2023-12-25 11:30:36,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 11:30:36,486 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:36,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 11:30:36,487 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 11:30:36,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-25 11:30:36,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 11:30:36,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 11:30:36,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 11:30:36,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 11:30:36,618 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 11:30:36,619 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 11:30:36,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [138099182] [2023-12-25 11:30:36,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [138099182] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 11:30:36,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 11:30:36,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 11:30:36,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562523869] [2023-12-25 11:30:36,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 11:30:36,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 11:30:36,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 11:30:36,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 11:30:36,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 11:30:36,620 INFO L87 Difference]: Start difference. First operand 2859 states and 4697 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:36,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 11:30:36,660 INFO L93 Difference]: Finished difference Result 8522 states and 14000 transitions. [2023-12-25 11:30:36,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 11:30:36,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2023-12-25 11:30:36,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 11:30:36,677 INFO L225 Difference]: With dead ends: 8522 [2023-12-25 11:30:36,677 INFO L226 Difference]: Without dead ends: 5691 [2023-12-25 11:30:36,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 11:30:36,683 INFO L413 NwaCegarLoop]: 1119 mSDtfsCounter, 555 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 11:30:36,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 1677 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 11:30:36,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5691 states. [2023-12-25 11:30:36,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5691 to 2873. [2023-12-25 11:30:36,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2873 states, 2872 states have (on average 1.6413649025069639) internal successors, (4714), 2872 states have internal predecessors, (4714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:36,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2873 states to 2873 states and 4714 transitions. [2023-12-25 11:30:36,789 INFO L78 Accepts]: Start accepts. Automaton has 2873 states and 4714 transitions. Word has length 124 [2023-12-25 11:30:36,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 11:30:36,789 INFO L495 AbstractCegarLoop]: Abstraction has 2873 states and 4714 transitions. [2023-12-25 11:30:36,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:36,790 INFO L276 IsEmpty]: Start isEmpty. Operand 2873 states and 4714 transitions. [2023-12-25 11:30:36,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-25 11:30:36,792 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 11:30:36,792 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 11:30:36,796 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-25 11:30:36,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:36,995 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 11:30:36,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 11:30:36,995 INFO L85 PathProgramCache]: Analyzing trace with hash -478756592, now seen corresponding path program 1 times [2023-12-25 11:30:36,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 11:30:36,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1008937281] [2023-12-25 11:30:36,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 11:30:36,996 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:36,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 11:30:36,997 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 11:30:36,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-25 11:30:37,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 11:30:37,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 11:30:37,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 11:30:37,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 11:30:37,480 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 11:30:37,480 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 11:30:37,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1008937281] [2023-12-25 11:30:37,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1008937281] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 11:30:37,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 11:30:37,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 11:30:37,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166189294] [2023-12-25 11:30:37,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 11:30:37,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 11:30:37,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 11:30:37,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 11:30:37,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 11:30:37,481 INFO L87 Difference]: Start difference. First operand 2873 states and 4714 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:37,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 11:30:37,600 INFO L93 Difference]: Finished difference Result 4987 states and 8235 transitions. [2023-12-25 11:30:37,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 11:30:37,601 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2023-12-25 11:30:37,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 11:30:37,608 INFO L225 Difference]: With dead ends: 4987 [2023-12-25 11:30:37,608 INFO L226 Difference]: Without dead ends: 2873 [2023-12-25 11:30:37,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 11:30:37,611 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 996 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 11:30:37,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [996 Valid, 1058 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 11:30:37,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2873 states. [2023-12-25 11:30:37,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2873 to 2873. [2023-12-25 11:30:37,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2873 states, 2872 states have (on average 1.6357938718662952) internal successors, (4698), 2872 states have internal predecessors, (4698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:37,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2873 states to 2873 states and 4698 transitions. [2023-12-25 11:30:37,659 INFO L78 Accepts]: Start accepts. Automaton has 2873 states and 4698 transitions. Word has length 126 [2023-12-25 11:30:37,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 11:30:37,659 INFO L495 AbstractCegarLoop]: Abstraction has 2873 states and 4698 transitions. [2023-12-25 11:30:37,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:37,660 INFO L276 IsEmpty]: Start isEmpty. Operand 2873 states and 4698 transitions. [2023-12-25 11:30:37,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-25 11:30:37,661 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 11:30:37,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 11:30:37,681 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-25 11:30:37,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:37,865 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 11:30:37,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 11:30:37,865 INFO L85 PathProgramCache]: Analyzing trace with hash 653640203, now seen corresponding path program 1 times [2023-12-25 11:30:37,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 11:30:37,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [875922339] [2023-12-25 11:30:37,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 11:30:37,866 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:37,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 11:30:37,867 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 11:30:37,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-25 11:30:38,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 11:30:38,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 11:30:38,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 11:30:38,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 11:30:38,162 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 11:30:38,162 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 11:30:38,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [875922339] [2023-12-25 11:30:38,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [875922339] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 11:30:38,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 11:30:38,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 11:30:38,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156874784] [2023-12-25 11:30:38,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 11:30:38,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 11:30:38,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 11:30:38,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 11:30:38,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 11:30:38,164 INFO L87 Difference]: Start difference. First operand 2873 states and 4698 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:38,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 11:30:38,229 INFO L93 Difference]: Finished difference Result 8349 states and 13662 transitions. [2023-12-25 11:30:38,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 11:30:38,229 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2023-12-25 11:30:38,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 11:30:38,244 INFO L225 Difference]: With dead ends: 8349 [2023-12-25 11:30:38,244 INFO L226 Difference]: Without dead ends: 5516 [2023-12-25 11:30:38,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 11:30:38,249 INFO L413 NwaCegarLoop]: 785 mSDtfsCounter, 1301 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1301 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 11:30:38,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1301 Valid, 1323 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 11:30:38,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5516 states. [2023-12-25 11:30:38,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5516 to 5514. [2023-12-25 11:30:38,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5514 states, 5513 states have (on average 1.6281516415744604) internal successors, (8976), 5513 states have internal predecessors, (8976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:38,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5514 states to 5514 states and 8976 transitions. [2023-12-25 11:30:38,378 INFO L78 Accepts]: Start accepts. Automaton has 5514 states and 8976 transitions. Word has length 126 [2023-12-25 11:30:38,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 11:30:38,379 INFO L495 AbstractCegarLoop]: Abstraction has 5514 states and 8976 transitions. [2023-12-25 11:30:38,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:38,379 INFO L276 IsEmpty]: Start isEmpty. Operand 5514 states and 8976 transitions. [2023-12-25 11:30:38,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-25 11:30:38,384 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 11:30:38,384 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 11:30:38,390 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-25 11:30:38,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:38,587 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 11:30:38,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 11:30:38,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1274916462, now seen corresponding path program 1 times [2023-12-25 11:30:38,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 11:30:38,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1626852462] [2023-12-25 11:30:38,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 11:30:38,589 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:38,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 11:30:38,601 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 11:30:38,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-25 11:30:38,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 11:30:38,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 11:30:38,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 11:30:38,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 11:30:38,779 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 11:30:38,779 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 11:30:38,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1626852462] [2023-12-25 11:30:38,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1626852462] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 11:30:38,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 11:30:38,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 11:30:38,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860664982] [2023-12-25 11:30:38,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 11:30:38,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 11:30:38,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 11:30:38,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 11:30:38,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 11:30:38,782 INFO L87 Difference]: Start difference. First operand 5514 states and 8976 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:38,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 11:30:38,888 INFO L93 Difference]: Finished difference Result 19850 states and 32161 transitions. [2023-12-25 11:30:38,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 11:30:38,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2023-12-25 11:30:38,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 11:30:38,930 INFO L225 Difference]: With dead ends: 19850 [2023-12-25 11:30:38,930 INFO L226 Difference]: Without dead ends: 14879 [2023-12-25 11:30:38,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 11:30:38,944 INFO L413 NwaCegarLoop]: 1278 mSDtfsCounter, 1306 mSDsluCounter, 1528 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1306 SdHoareTripleChecker+Valid, 2806 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 11:30:38,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1306 Valid, 2806 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 11:30:38,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14879 states. [2023-12-25 11:30:39,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14879 to 5975. [2023-12-25 11:30:39,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5975 states, 5974 states have (on average 1.632574489454302) internal successors, (9753), 5974 states have internal predecessors, (9753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:39,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5975 states to 5975 states and 9753 transitions. [2023-12-25 11:30:39,127 INFO L78 Accepts]: Start accepts. Automaton has 5975 states and 9753 transitions. Word has length 126 [2023-12-25 11:30:39,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 11:30:39,127 INFO L495 AbstractCegarLoop]: Abstraction has 5975 states and 9753 transitions. [2023-12-25 11:30:39,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:39,128 INFO L276 IsEmpty]: Start isEmpty. Operand 5975 states and 9753 transitions. [2023-12-25 11:30:39,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-25 11:30:39,132 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 11:30:39,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 11:30:39,137 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-25 11:30:39,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:39,336 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 11:30:39,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 11:30:39,336 INFO L85 PathProgramCache]: Analyzing trace with hash 773637447, now seen corresponding path program 1 times [2023-12-25 11:30:39,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 11:30:39,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [654394062] [2023-12-25 11:30:39,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 11:30:39,337 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:39,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 11:30:39,338 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 11:30:39,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-25 11:30:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 11:30:39,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 11:30:39,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 11:30:39,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 11:30:39,508 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 11:30:39,508 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 11:30:39,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [654394062] [2023-12-25 11:30:39,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [654394062] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 11:30:39,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 11:30:39,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 11:30:39,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800654060] [2023-12-25 11:30:39,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 11:30:39,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 11:30:39,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 11:30:39,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 11:30:39,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 11:30:39,509 INFO L87 Difference]: Start difference. First operand 5975 states and 9753 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:39,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 11:30:39,555 INFO L93 Difference]: Finished difference Result 13766 states and 22609 transitions. [2023-12-25 11:30:39,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 11:30:39,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2023-12-25 11:30:39,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 11:30:39,571 INFO L225 Difference]: With dead ends: 13766 [2023-12-25 11:30:39,571 INFO L226 Difference]: Without dead ends: 9723 [2023-12-25 11:30:39,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 11:30:39,578 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 224 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 11:30:39,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 1095 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 11:30:39,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9723 states. [2023-12-25 11:30:39,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9723 to 9690. [2023-12-25 11:30:39,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9690 states, 9689 states have (on average 1.6339147486840748) internal successors, (15831), 9689 states have internal predecessors, (15831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:39,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9690 states to 9690 states and 15831 transitions. [2023-12-25 11:30:39,745 INFO L78 Accepts]: Start accepts. Automaton has 9690 states and 15831 transitions. Word has length 128 [2023-12-25 11:30:39,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 11:30:39,746 INFO L495 AbstractCegarLoop]: Abstraction has 9690 states and 15831 transitions. [2023-12-25 11:30:39,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:39,746 INFO L276 IsEmpty]: Start isEmpty. Operand 9690 states and 15831 transitions. [2023-12-25 11:30:39,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-25 11:30:39,751 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 11:30:39,752 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 11:30:39,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-25 11:30:39,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:39,956 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 11:30:39,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 11:30:39,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1796868324, now seen corresponding path program 1 times [2023-12-25 11:30:39,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 11:30:39,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [900017240] [2023-12-25 11:30:39,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 11:30:39,958 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:39,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 11:30:39,959 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 11:30:39,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-25 11:30:40,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 11:30:40,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 11:30:40,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 11:30:40,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 11:30:40,197 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 11:30:40,197 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 11:30:40,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [900017240] [2023-12-25 11:30:40,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [900017240] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 11:30:40,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 11:30:40,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 11:30:40,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652044328] [2023-12-25 11:30:40,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 11:30:40,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 11:30:40,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 11:30:40,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 11:30:40,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 11:30:40,198 INFO L87 Difference]: Start difference. First operand 9690 states and 15831 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:40,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 11:30:40,305 INFO L93 Difference]: Finished difference Result 28260 states and 46167 transitions. [2023-12-25 11:30:40,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 11:30:40,305 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2023-12-25 11:30:40,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 11:30:40,336 INFO L225 Difference]: With dead ends: 28260 [2023-12-25 11:30:40,336 INFO L226 Difference]: Without dead ends: 18804 [2023-12-25 11:30:40,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 11:30:40,352 INFO L413 NwaCegarLoop]: 573 mSDtfsCounter, 1457 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1457 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 11:30:40,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1457 Valid, 1110 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 11:30:40,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18804 states. [2023-12-25 11:30:40,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18804 to 18802. [2023-12-25 11:30:40,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18802 states, 18801 states have (on average 1.6256050210095208) internal successors, (30563), 18801 states have internal predecessors, (30563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:40,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18802 states to 18802 states and 30563 transitions. [2023-12-25 11:30:40,586 INFO L78 Accepts]: Start accepts. Automaton has 18802 states and 30563 transitions. Word has length 131 [2023-12-25 11:30:40,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 11:30:40,586 INFO L495 AbstractCegarLoop]: Abstraction has 18802 states and 30563 transitions. [2023-12-25 11:30:40,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:40,587 INFO L276 IsEmpty]: Start isEmpty. Operand 18802 states and 30563 transitions. [2023-12-25 11:30:40,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-25 11:30:40,595 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 11:30:40,595 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 11:30:40,601 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-25 11:30:40,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:40,799 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 11:30:40,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 11:30:40,799 INFO L85 PathProgramCache]: Analyzing trace with hash -862318058, now seen corresponding path program 1 times [2023-12-25 11:30:40,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 11:30:40,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [383397689] [2023-12-25 11:30:40,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 11:30:40,800 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:40,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 11:30:40,801 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 11:30:40,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-25 11:30:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 11:30:40,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 11:30:40,915 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 11:30:40,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 11:30:40,939 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 11:30:40,939 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 11:30:40,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [383397689] [2023-12-25 11:30:40,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [383397689] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 11:30:40,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 11:30:40,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 11:30:40,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028684488] [2023-12-25 11:30:40,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 11:30:40,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 11:30:40,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 11:30:40,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 11:30:40,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 11:30:40,940 INFO L87 Difference]: Start difference. First operand 18802 states and 30563 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:41,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 11:30:41,122 INFO L93 Difference]: Finished difference Result 41105 states and 67304 transitions. [2023-12-25 11:30:41,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 11:30:41,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2023-12-25 11:30:41,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 11:30:41,166 INFO L225 Difference]: With dead ends: 41105 [2023-12-25 11:30:41,166 INFO L226 Difference]: Without dead ends: 25917 [2023-12-25 11:30:41,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 11:30:41,187 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 234 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 11:30:41,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 1121 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 11:30:41,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25917 states. [2023-12-25 11:30:41,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25917 to 25387. [2023-12-25 11:30:41,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25387 states, 25386 states have (on average 1.621996375955251) internal successors, (41176), 25386 states have internal predecessors, (41176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:41,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25387 states to 25387 states and 41176 transitions. [2023-12-25 11:30:41,484 INFO L78 Accepts]: Start accepts. Automaton has 25387 states and 41176 transitions. Word has length 132 [2023-12-25 11:30:41,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 11:30:41,484 INFO L495 AbstractCegarLoop]: Abstraction has 25387 states and 41176 transitions. [2023-12-25 11:30:41,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:41,484 INFO L276 IsEmpty]: Start isEmpty. Operand 25387 states and 41176 transitions. [2023-12-25 11:30:41,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-25 11:30:41,493 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 11:30:41,493 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 11:30:41,496 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-12-25 11:30:41,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:41,696 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 11:30:41,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 11:30:41,696 INFO L85 PathProgramCache]: Analyzing trace with hash -2034820195, now seen corresponding path program 1 times [2023-12-25 11:30:41,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 11:30:41,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [480717774] [2023-12-25 11:30:41,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 11:30:41,697 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:41,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 11:30:41,698 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 11:30:41,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-25 11:30:41,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 11:30:41,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 11:30:41,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 11:30:42,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 11:30:42,037 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 11:30:42,037 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 11:30:42,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [480717774] [2023-12-25 11:30:42,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [480717774] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 11:30:42,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 11:30:42,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 11:30:42,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646727734] [2023-12-25 11:30:42,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 11:30:42,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 11:30:42,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 11:30:42,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 11:30:42,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 11:30:42,038 INFO L87 Difference]: Start difference. First operand 25387 states and 41176 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:42,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 11:30:42,229 INFO L93 Difference]: Finished difference Result 72675 states and 117670 transitions. [2023-12-25 11:30:42,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 11:30:42,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2023-12-25 11:30:42,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 11:30:42,298 INFO L225 Difference]: With dead ends: 72675 [2023-12-25 11:30:42,298 INFO L226 Difference]: Without dead ends: 49074 [2023-12-25 11:30:42,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 11:30:42,333 INFO L413 NwaCegarLoop]: 1060 mSDtfsCounter, 425 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 1607 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 11:30:42,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 1607 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 11:30:42,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49074 states. [2023-12-25 11:30:43,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49074 to 49072. [2023-12-25 11:30:43,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49072 states, 49071 states have (on average 1.6125817692730942) internal successors, (79131), 49071 states have internal predecessors, (79131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:43,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49072 states to 49072 states and 79131 transitions. [2023-12-25 11:30:43,408 INFO L78 Accepts]: Start accepts. Automaton has 49072 states and 79131 transitions. Word has length 133 [2023-12-25 11:30:43,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 11:30:43,408 INFO L495 AbstractCegarLoop]: Abstraction has 49072 states and 79131 transitions. [2023-12-25 11:30:43,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:43,408 INFO L276 IsEmpty]: Start isEmpty. Operand 49072 states and 79131 transitions. [2023-12-25 11:30:43,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-25 11:30:43,421 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 11:30:43,421 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 11:30:43,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-25 11:30:43,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:43,624 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 11:30:43,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 11:30:43,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1390024872, now seen corresponding path program 1 times [2023-12-25 11:30:43,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 11:30:43,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1834520190] [2023-12-25 11:30:43,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 11:30:43,626 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:43,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 11:30:43,627 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 11:30:43,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-25 11:30:43,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 11:30:43,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 11:30:43,722 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 11:30:43,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 11:30:43,805 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 11:30:43,805 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 11:30:43,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1834520190] [2023-12-25 11:30:43,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1834520190] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 11:30:43,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 11:30:43,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 11:30:43,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128140202] [2023-12-25 11:30:43,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 11:30:43,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 11:30:43,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 11:30:43,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 11:30:43,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 11:30:43,807 INFO L87 Difference]: Start difference. First operand 49072 states and 79131 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:44,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 11:30:44,336 INFO L93 Difference]: Finished difference Result 174979 states and 281360 transitions. [2023-12-25 11:30:44,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 11:30:44,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2023-12-25 11:30:44,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 11:30:44,520 INFO L225 Difference]: With dead ends: 174979 [2023-12-25 11:30:44,520 INFO L226 Difference]: Without dead ends: 128467 [2023-12-25 11:30:44,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 11:30:44,560 INFO L413 NwaCegarLoop]: 1310 mSDtfsCounter, 1256 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1256 SdHoareTripleChecker+Valid, 2840 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 11:30:44,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1256 Valid, 2840 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 11:30:44,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128467 states. [2023-12-25 11:30:45,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128467 to 50445. [2023-12-25 11:30:45,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50445 states, 50444 states have (on average 1.6116485607802713) internal successors, (81298), 50444 states have internal predecessors, (81298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:45,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50445 states to 50445 states and 81298 transitions. [2023-12-25 11:30:45,986 INFO L78 Accepts]: Start accepts. Automaton has 50445 states and 81298 transitions. Word has length 133 [2023-12-25 11:30:45,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 11:30:45,986 INFO L495 AbstractCegarLoop]: Abstraction has 50445 states and 81298 transitions. [2023-12-25 11:30:45,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:45,987 INFO L276 IsEmpty]: Start isEmpty. Operand 50445 states and 81298 transitions. [2023-12-25 11:30:46,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-25 11:30:46,001 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 11:30:46,001 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 11:30:46,008 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-12-25 11:30:46,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:46,205 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 11:30:46,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 11:30:46,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1540339653, now seen corresponding path program 1 times [2023-12-25 11:30:46,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 11:30:46,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [947295455] [2023-12-25 11:30:46,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 11:30:46,206 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:46,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 11:30:46,207 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 11:30:46,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-25 11:30:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 11:30:46,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 11:30:46,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 11:30:46,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 11:30:46,499 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 11:30:46,500 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 11:30:46,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [947295455] [2023-12-25 11:30:46,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [947295455] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 11:30:46,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 11:30:46,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 11:30:46,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033247367] [2023-12-25 11:30:46,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 11:30:46,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 11:30:46,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 11:30:46,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 11:30:46,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 11:30:46,502 INFO L87 Difference]: Start difference. First operand 50445 states and 81298 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:46,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 11:30:46,924 INFO L93 Difference]: Finished difference Result 111846 states and 180220 transitions. [2023-12-25 11:30:46,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 11:30:46,925 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2023-12-25 11:30:46,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 11:30:47,027 INFO L225 Difference]: With dead ends: 111846 [2023-12-25 11:30:47,027 INFO L226 Difference]: Without dead ends: 61783 [2023-12-25 11:30:47,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 11:30:47,080 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 1469 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 11:30:47,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1469 Valid, 1116 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 11:30:47,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61783 states. [2023-12-25 11:30:47,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61783 to 51943. [2023-12-25 11:30:47,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51943 states, 51942 states have (on average 1.6130876747141043) internal successors, (83787), 51942 states have internal predecessors, (83787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:48,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51943 states to 51943 states and 83787 transitions. [2023-12-25 11:30:48,071 INFO L78 Accepts]: Start accepts. Automaton has 51943 states and 83787 transitions. Word has length 134 [2023-12-25 11:30:48,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 11:30:48,071 INFO L495 AbstractCegarLoop]: Abstraction has 51943 states and 83787 transitions. [2023-12-25 11:30:48,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:48,072 INFO L276 IsEmpty]: Start isEmpty. Operand 51943 states and 83787 transitions. [2023-12-25 11:30:48,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 11:30:48,092 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 11:30:48,096 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 11:30:48,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-25 11:30:48,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:48,303 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 11:30:48,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 11:30:48,303 INFO L85 PathProgramCache]: Analyzing trace with hash -717050184, now seen corresponding path program 1 times [2023-12-25 11:30:48,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 11:30:48,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1294166625] [2023-12-25 11:30:48,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 11:30:48,304 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:48,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 11:30:48,306 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 11:30:48,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-25 11:30:48,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 11:30:48,449 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 11:30:48,451 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 11:30:48,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 11:30:48,489 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 11:30:48,489 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 11:30:48,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1294166625] [2023-12-25 11:30:48,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1294166625] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 11:30:48,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 11:30:48,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 11:30:48,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093588736] [2023-12-25 11:30:48,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 11:30:48,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 11:30:48,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 11:30:48,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 11:30:48,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 11:30:48,491 INFO L87 Difference]: Start difference. First operand 51943 states and 83787 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:48,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 11:30:48,882 INFO L93 Difference]: Finished difference Result 93133 states and 151007 transitions. [2023-12-25 11:30:48,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 11:30:48,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2023-12-25 11:30:48,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 11:30:48,999 INFO L225 Difference]: With dead ends: 93133 [2023-12-25 11:30:48,999 INFO L226 Difference]: Without dead ends: 64587 [2023-12-25 11:30:49,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 11:30:49,037 INFO L413 NwaCegarLoop]: 741 mSDtfsCounter, 223 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 1266 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 11:30:49,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 1266 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 11:30:49,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64587 states. [2023-12-25 11:30:49,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64587 to 64585. [2023-12-25 11:30:49,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64585 states, 64584 states have (on average 1.6135420537594451) internal successors, (104209), 64584 states have internal predecessors, (104209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:49,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64585 states to 64585 states and 104209 transitions. [2023-12-25 11:30:49,997 INFO L78 Accepts]: Start accepts. Automaton has 64585 states and 104209 transitions. Word has length 135 [2023-12-25 11:30:49,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 11:30:49,997 INFO L495 AbstractCegarLoop]: Abstraction has 64585 states and 104209 transitions. [2023-12-25 11:30:49,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:49,997 INFO L276 IsEmpty]: Start isEmpty. Operand 64585 states and 104209 transitions. [2023-12-25 11:30:50,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-25 11:30:50,011 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 11:30:50,011 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 11:30:50,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-25 11:30:50,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:50,215 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 11:30:50,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 11:30:50,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1249841779, now seen corresponding path program 1 times [2023-12-25 11:30:50,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 11:30:50,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [860688409] [2023-12-25 11:30:50,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 11:30:50,216 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:50,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 11:30:50,229 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 11:30:50,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-25 11:30:50,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 11:30:50,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 11:30:50,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 11:30:50,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 11:30:50,355 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 11:30:50,355 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 11:30:50,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [860688409] [2023-12-25 11:30:50,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [860688409] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 11:30:50,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 11:30:50,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 11:30:50,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027997359] [2023-12-25 11:30:50,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 11:30:50,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 11:30:50,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 11:30:50,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 11:30:50,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 11:30:50,358 INFO L87 Difference]: Start difference. First operand 64585 states and 104209 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:50,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 11:30:50,960 INFO L93 Difference]: Finished difference Result 192048 states and 309948 transitions. [2023-12-25 11:30:50,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 11:30:50,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2023-12-25 11:30:50,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 11:30:51,174 INFO L225 Difference]: With dead ends: 192048 [2023-12-25 11:30:51,175 INFO L226 Difference]: Without dead ends: 128401 [2023-12-25 11:30:51,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 11:30:51,226 INFO L413 NwaCegarLoop]: 1064 mSDtfsCounter, 516 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 1619 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 11:30:51,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 1619 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 11:30:51,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128401 states. [2023-12-25 11:30:52,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128401 to 64887. [2023-12-25 11:30:52,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64887 states, 64886 states have (on average 1.6115032518571033) internal successors, (104564), 64886 states have internal predecessors, (104564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:52,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64887 states to 64887 states and 104564 transitions. [2023-12-25 11:30:52,812 INFO L78 Accepts]: Start accepts. Automaton has 64887 states and 104564 transitions. Word has length 136 [2023-12-25 11:30:52,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 11:30:52,812 INFO L495 AbstractCegarLoop]: Abstraction has 64887 states and 104564 transitions. [2023-12-25 11:30:52,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:52,813 INFO L276 IsEmpty]: Start isEmpty. Operand 64887 states and 104564 transitions. [2023-12-25 11:30:52,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-25 11:30:52,823 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 11:30:52,823 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 11:30:52,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-25 11:30:53,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:53,027 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 11:30:53,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 11:30:53,028 INFO L85 PathProgramCache]: Analyzing trace with hash -590462936, now seen corresponding path program 1 times [2023-12-25 11:30:53,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 11:30:53,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [414477691] [2023-12-25 11:30:53,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 11:30:53,028 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:53,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 11:30:53,029 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 11:30:53,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-25 11:30:53,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 11:30:53,165 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 11:30:53,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 11:30:53,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 11:30:53,317 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 11:30:53,317 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 11:30:53,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [414477691] [2023-12-25 11:30:53,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [414477691] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 11:30:53,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 11:30:53,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 11:30:53,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173973658] [2023-12-25 11:30:53,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 11:30:53,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 11:30:53,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 11:30:53,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 11:30:53,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 11:30:53,318 INFO L87 Difference]: Start difference. First operand 64887 states and 104564 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:54,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 11:30:54,019 INFO L93 Difference]: Finished difference Result 182209 states and 293338 transitions. [2023-12-25 11:30:54,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 11:30:54,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2023-12-25 11:30:54,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 11:30:54,219 INFO L225 Difference]: With dead ends: 182209 [2023-12-25 11:30:54,219 INFO L226 Difference]: Without dead ends: 122520 [2023-12-25 11:30:54,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 11:30:54,244 INFO L413 NwaCegarLoop]: 1058 mSDtfsCounter, 415 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 11:30:54,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 1605 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 11:30:54,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122520 states. [2023-12-25 11:30:55,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122520 to 122492. [2023-12-25 11:30:55,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122492 states, 122491 states have (on average 1.6025503914573316) internal successors, (196298), 122491 states have internal predecessors, (196298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:56,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122492 states to 122492 states and 196298 transitions. [2023-12-25 11:30:56,269 INFO L78 Accepts]: Start accepts. Automaton has 122492 states and 196298 transitions. Word has length 137 [2023-12-25 11:30:56,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 11:30:56,270 INFO L495 AbstractCegarLoop]: Abstraction has 122492 states and 196298 transitions. [2023-12-25 11:30:56,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:56,270 INFO L276 IsEmpty]: Start isEmpty. Operand 122492 states and 196298 transitions. [2023-12-25 11:30:56,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-25 11:30:56,299 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 11:30:56,300 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 11:30:56,303 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-25 11:30:56,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:56,503 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 11:30:56,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 11:30:56,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1983585876, now seen corresponding path program 1 times [2023-12-25 11:30:56,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 11:30:56,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [659783047] [2023-12-25 11:30:56,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 11:30:56,504 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:30:56,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 11:30:56,505 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 11:30:56,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-25 11:30:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 11:30:56,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 11:30:56,650 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 11:30:56,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 11:30:56,801 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 11:30:56,801 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 11:30:56,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [659783047] [2023-12-25 11:30:56,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [659783047] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 11:30:56,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 11:30:56,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 11:30:56,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522520876] [2023-12-25 11:30:56,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 11:30:56,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 11:30:56,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 11:30:56,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 11:30:56,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 11:30:56,803 INFO L87 Difference]: Start difference. First operand 122492 states and 196298 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:30:57,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 11:30:57,722 INFO L93 Difference]: Finished difference Result 252533 states and 404221 transitions. [2023-12-25 11:30:57,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 11:30:57,722 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-25 11:30:57,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 11:30:57,924 INFO L225 Difference]: With dead ends: 252533 [2023-12-25 11:30:57,924 INFO L226 Difference]: Without dead ends: 131208 [2023-12-25 11:30:58,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 11:30:58,013 INFO L413 NwaCegarLoop]: 762 mSDtfsCounter, 1259 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1259 SdHoareTripleChecker+Valid, 1299 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 11:30:58,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1259 Valid, 1299 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 11:30:58,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131208 states. [2023-12-25 11:30:59,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131208 to 123580. [2023-12-25 11:30:59,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123580 states, 123579 states have (on average 1.6024810040540869) internal successors, (198033), 123579 states have internal predecessors, (198033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:31:00,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123580 states to 123580 states and 198033 transitions. [2023-12-25 11:31:00,285 INFO L78 Accepts]: Start accepts. Automaton has 123580 states and 198033 transitions. Word has length 138 [2023-12-25 11:31:00,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 11:31:00,286 INFO L495 AbstractCegarLoop]: Abstraction has 123580 states and 198033 transitions. [2023-12-25 11:31:00,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:31:00,287 INFO L276 IsEmpty]: Start isEmpty. Operand 123580 states and 198033 transitions. [2023-12-25 11:31:00,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-25 11:31:00,337 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 11:31:00,337 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 11:31:00,341 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-12-25 11:31:00,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:31:00,541 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 11:31:00,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 11:31:00,541 INFO L85 PathProgramCache]: Analyzing trace with hash 206467021, now seen corresponding path program 1 times [2023-12-25 11:31:00,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 11:31:00,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [10685435] [2023-12-25 11:31:00,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 11:31:00,542 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:31:00,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 11:31:00,543 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 11:31:00,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-25 11:31:00,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 11:31:00,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 11:31:00,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 11:31:00,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 11:31:00,719 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 11:31:00,719 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 11:31:00,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [10685435] [2023-12-25 11:31:00,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [10685435] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 11:31:00,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 11:31:00,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 11:31:00,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146986527] [2023-12-25 11:31:00,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 11:31:00,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 11:31:00,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 11:31:00,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 11:31:00,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 11:31:00,721 INFO L87 Difference]: Start difference. First operand 123580 states and 198033 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:31:02,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 11:31:02,150 INFO L93 Difference]: Finished difference Result 447115 states and 715511 transitions. [2023-12-25 11:31:02,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 11:31:02,150 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-25 11:31:02,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 11:31:03,097 INFO L225 Difference]: With dead ends: 447115 [2023-12-25 11:31:03,097 INFO L226 Difference]: Without dead ends: 335218 [2023-12-25 11:31:03,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 11:31:03,184 INFO L413 NwaCegarLoop]: 1057 mSDtfsCounter, 1210 mSDsluCounter, 1495 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 2552 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 11:31:03,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1210 Valid, 2552 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 11:31:03,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335218 states. [2023-12-25 11:31:06,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335218 to 133088. [2023-12-25 11:31:06,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133088 states, 133087 states have (on average 1.6035225078332218) internal successors, (213408), 133087 states have internal predecessors, (213408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:31:06,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133088 states to 133088 states and 213408 transitions. [2023-12-25 11:31:06,463 INFO L78 Accepts]: Start accepts. Automaton has 133088 states and 213408 transitions. Word has length 138 [2023-12-25 11:31:06,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 11:31:06,464 INFO L495 AbstractCegarLoop]: Abstraction has 133088 states and 213408 transitions. [2023-12-25 11:31:06,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:31:06,464 INFO L276 IsEmpty]: Start isEmpty. Operand 133088 states and 213408 transitions. [2023-12-25 11:31:06,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-25 11:31:06,498 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 11:31:06,499 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 11:31:06,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-25 11:31:06,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:31:06,702 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 11:31:06,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 11:31:06,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1793946154, now seen corresponding path program 1 times [2023-12-25 11:31:06,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 11:31:06,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [838919113] [2023-12-25 11:31:06,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 11:31:06,703 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:31:06,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 11:31:06,704 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 11:31:06,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-25 11:31:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 11:31:06,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 11:31:06,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 11:31:06,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 11:31:06,871 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 11:31:06,871 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 11:31:06,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [838919113] [2023-12-25 11:31:06,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [838919113] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 11:31:06,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 11:31:06,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 11:31:06,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306415986] [2023-12-25 11:31:06,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 11:31:06,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 11:31:06,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 11:31:06,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 11:31:06,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 11:31:06,873 INFO L87 Difference]: Start difference. First operand 133088 states and 213408 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:31:08,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 11:31:08,537 INFO L93 Difference]: Finished difference Result 445066 states and 711809 transitions. [2023-12-25 11:31:08,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 11:31:08,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2023-12-25 11:31:08,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 11:31:09,098 INFO L225 Difference]: With dead ends: 445066 [2023-12-25 11:31:09,098 INFO L226 Difference]: Without dead ends: 332913 [2023-12-25 11:31:09,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 11:31:09,168 INFO L413 NwaCegarLoop]: 1243 mSDtfsCounter, 1185 mSDsluCounter, 1497 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 2740 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 11:31:09,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1185 Valid, 2740 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 11:31:09,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332913 states. [2023-12-25 11:31:12,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332913 to 144069. [2023-12-25 11:31:12,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144069 states, 144068 states have (on average 1.6033123247355416) internal successors, (230986), 144068 states have internal predecessors, (230986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:31:12,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144069 states to 144069 states and 230986 transitions. [2023-12-25 11:31:12,854 INFO L78 Accepts]: Start accepts. Automaton has 144069 states and 230986 transitions. Word has length 140 [2023-12-25 11:31:12,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 11:31:12,854 INFO L495 AbstractCegarLoop]: Abstraction has 144069 states and 230986 transitions. [2023-12-25 11:31:12,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:31:12,854 INFO L276 IsEmpty]: Start isEmpty. Operand 144069 states and 230986 transitions. [2023-12-25 11:31:12,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-25 11:31:12,893 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 11:31:12,893 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 11:31:12,896 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-25 11:31:13,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:31:13,096 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 11:31:13,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 11:31:13,096 INFO L85 PathProgramCache]: Analyzing trace with hash -2046110216, now seen corresponding path program 1 times [2023-12-25 11:31:13,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 11:31:13,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1480475381] [2023-12-25 11:31:13,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 11:31:13,097 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:31:13,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 11:31:13,098 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 11:31:13,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-25 11:31:13,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 11:31:13,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 11:31:13,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 11:31:13,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 11:31:13,239 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 11:31:13,239 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 11:31:13,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1480475381] [2023-12-25 11:31:13,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1480475381] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 11:31:13,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 11:31:13,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 11:31:13,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821278223] [2023-12-25 11:31:13,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 11:31:13,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 11:31:13,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 11:31:13,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 11:31:13,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 11:31:13,240 INFO L87 Difference]: Start difference. First operand 144069 states and 230986 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:31:14,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 11:31:14,543 INFO L93 Difference]: Finished difference Result 412755 states and 661065 transitions. [2023-12-25 11:31:14,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 11:31:14,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2023-12-25 11:31:14,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 11:31:15,123 INFO L225 Difference]: With dead ends: 412755 [2023-12-25 11:31:15,124 INFO L226 Difference]: Without dead ends: 274762 [2023-12-25 11:31:15,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 11:31:15,275 INFO L413 NwaCegarLoop]: 1043 mSDtfsCounter, 1056 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 1586 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 11:31:15,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1056 Valid, 1586 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 11:31:15,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274762 states. [2023-12-25 11:31:19,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274762 to 274760. [2023-12-25 11:31:19,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274760 states, 274759 states have (on average 1.5878897506542098) internal successors, (436287), 274759 states have internal predecessors, (436287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:31:20,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274760 states to 274760 states and 436287 transitions. [2023-12-25 11:31:20,310 INFO L78 Accepts]: Start accepts. Automaton has 274760 states and 436287 transitions. Word has length 141 [2023-12-25 11:31:20,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 11:31:20,310 INFO L495 AbstractCegarLoop]: Abstraction has 274760 states and 436287 transitions. [2023-12-25 11:31:20,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:31:20,310 INFO L276 IsEmpty]: Start isEmpty. Operand 274760 states and 436287 transitions. [2023-12-25 11:31:20,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-25 11:31:20,851 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 11:31:20,851 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 11:31:20,855 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-25 11:31:21,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:31:21,055 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 11:31:21,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 11:31:21,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1740326235, now seen corresponding path program 1 times [2023-12-25 11:31:21,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 11:31:21,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [987714290] [2023-12-25 11:31:21,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 11:31:21,057 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:31:21,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 11:31:21,058 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 11:31:21,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-25 11:31:21,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 11:31:21,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 11:31:21,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 11:31:21,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 11:31:21,214 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 11:31:21,215 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 11:31:21,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [987714290] [2023-12-25 11:31:21,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [987714290] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 11:31:21,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 11:31:21,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 11:31:21,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150093610] [2023-12-25 11:31:21,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 11:31:21,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 11:31:21,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 11:31:21,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 11:31:21,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 11:31:21,216 INFO L87 Difference]: Start difference. First operand 274760 states and 436287 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:31:24,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 11:31:24,351 INFO L93 Difference]: Finished difference Result 899733 states and 1423907 transitions. [2023-12-25 11:31:24,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 11:31:24,352 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2023-12-25 11:31:24,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 11:31:25,586 INFO L225 Difference]: With dead ends: 899733 [2023-12-25 11:31:25,586 INFO L226 Difference]: Without dead ends: 672675 [2023-12-25 11:31:25,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 11:31:25,730 INFO L413 NwaCegarLoop]: 1323 mSDtfsCounter, 1211 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1211 SdHoareTripleChecker+Valid, 2850 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 11:31:25,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1211 Valid, 2850 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 11:31:26,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672675 states. [2023-12-25 11:31:32,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672675 to 294972. [2023-12-25 11:31:32,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294972 states, 294971 states have (on average 1.5789925111282126) internal successors, (465757), 294971 states have internal predecessors, (465757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:31:33,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294972 states to 294972 states and 465757 transitions. [2023-12-25 11:31:33,563 INFO L78 Accepts]: Start accepts. Automaton has 294972 states and 465757 transitions. Word has length 141 [2023-12-25 11:31:33,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 11:31:33,563 INFO L495 AbstractCegarLoop]: Abstraction has 294972 states and 465757 transitions. [2023-12-25 11:31:33,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:31:33,563 INFO L276 IsEmpty]: Start isEmpty. Operand 294972 states and 465757 transitions. [2023-12-25 11:31:34,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-25 11:31:34,175 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 11:31:34,175 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 11:31:34,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-25 11:31:34,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:31:34,381 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 11:31:34,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 11:31:34,381 INFO L85 PathProgramCache]: Analyzing trace with hash -959812133, now seen corresponding path program 1 times [2023-12-25 11:31:34,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 11:31:34,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1327230449] [2023-12-25 11:31:34,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 11:31:34,382 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:31:34,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 11:31:34,383 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 11:31:34,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-25 11:31:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 11:31:34,511 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 11:31:34,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 11:31:34,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 11:31:34,892 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 11:31:34,892 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 11:31:34,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1327230449] [2023-12-25 11:31:34,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1327230449] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 11:31:34,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 11:31:34,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 11:31:34,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556519669] [2023-12-25 11:31:34,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 11:31:34,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 11:31:34,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 11:31:34,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 11:31:34,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 11:31:34,893 INFO L87 Difference]: Start difference. First operand 294972 states and 465757 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:31:36,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 11:31:36,700 INFO L93 Difference]: Finished difference Result 479796 states and 762248 transitions. [2023-12-25 11:31:36,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 11:31:36,701 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2023-12-25 11:31:36,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 11:31:37,482 INFO L225 Difference]: With dead ends: 479796 [2023-12-25 11:31:37,482 INFO L226 Difference]: Without dead ends: 294972 [2023-12-25 11:31:37,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 11:31:37,696 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 715 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 11:31:37,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [715 Valid, 1060 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 11:31:37,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294972 states. [2023-12-25 11:31:41,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294972 to 294972. [2023-12-25 11:31:41,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294972 states, 294971 states have (on average 1.5739479474253402) internal successors, (464269), 294971 states have internal predecessors, (464269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:31:42,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294972 states to 294972 states and 464269 transitions. [2023-12-25 11:31:42,555 INFO L78 Accepts]: Start accepts. Automaton has 294972 states and 464269 transitions. Word has length 141 [2023-12-25 11:31:42,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 11:31:42,555 INFO L495 AbstractCegarLoop]: Abstraction has 294972 states and 464269 transitions. [2023-12-25 11:31:42,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:31:42,555 INFO L276 IsEmpty]: Start isEmpty. Operand 294972 states and 464269 transitions. [2023-12-25 11:31:42,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-25 11:31:42,697 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 11:31:42,697 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 11:31:42,702 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2023-12-25 11:31:42,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:31:42,900 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 11:31:42,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 11:31:42,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1583662890, now seen corresponding path program 1 times [2023-12-25 11:31:42,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 11:31:42,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1114576071] [2023-12-25 11:31:42,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 11:31:42,905 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:31:42,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 11:31:42,906 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 11:31:42,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-25 11:31:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 11:31:43,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 11:31:43,032 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 11:31:43,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 11:31:43,102 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 11:31:43,103 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 11:31:43,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1114576071] [2023-12-25 11:31:43,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1114576071] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 11:31:43,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 11:31:43,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 11:31:43,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171009686] [2023-12-25 11:31:43,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 11:31:43,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 11:31:43,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 11:31:43,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 11:31:43,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 11:31:43,104 INFO L87 Difference]: Start difference. First operand 294972 states and 464269 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:31:46,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 11:31:46,348 INFO L93 Difference]: Finished difference Result 684864 states and 1086659 transitions. [2023-12-25 11:31:46,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 11:31:46,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2023-12-25 11:31:46,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 11:31:47,561 INFO L225 Difference]: With dead ends: 684864 [2023-12-25 11:31:47,562 INFO L226 Difference]: Without dead ends: 481238 [2023-12-25 11:31:48,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 11:31:48,140 INFO L413 NwaCegarLoop]: 565 mSDtfsCounter, 206 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 11:31:48,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 1089 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 11:31:48,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481238 states. [2023-12-25 11:31:54,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481238 to 479314. [2023-12-25 11:31:54,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479314 states, 479313 states have (on average 1.5756947965108394) internal successors, (755251), 479313 states have internal predecessors, (755251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:31:57,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479314 states to 479314 states and 755251 transitions. [2023-12-25 11:31:57,069 INFO L78 Accepts]: Start accepts. Automaton has 479314 states and 755251 transitions. Word has length 141 [2023-12-25 11:31:57,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 11:31:57,070 INFO L495 AbstractCegarLoop]: Abstraction has 479314 states and 755251 transitions. [2023-12-25 11:31:57,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:31:57,070 INFO L276 IsEmpty]: Start isEmpty. Operand 479314 states and 755251 transitions. [2023-12-25 11:31:57,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-25 11:31:57,203 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 11:31:57,203 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 11:31:57,213 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2023-12-25 11:31:57,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:31:57,407 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 11:31:57,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 11:31:57,407 INFO L85 PathProgramCache]: Analyzing trace with hash -997044982, now seen corresponding path program 1 times [2023-12-25 11:31:57,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 11:31:57,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [699076234] [2023-12-25 11:31:57,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 11:31:57,408 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:31:57,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 11:31:57,409 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 11:31:57,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-25 11:31:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 11:31:57,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 11:31:57,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 11:31:57,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 11:31:57,632 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 11:31:57,632 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 11:31:57,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [699076234] [2023-12-25 11:31:57,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [699076234] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 11:31:57,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 11:31:57,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 11:31:57,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000282984] [2023-12-25 11:31:57,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 11:31:57,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 11:31:57,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 11:31:57,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 11:31:57,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 11:31:57,634 INFO L87 Difference]: Start difference. First operand 479314 states and 755251 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:32:02,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 11:32:02,264 INFO L93 Difference]: Finished difference Result 1320830 states and 2080351 transitions. [2023-12-25 11:32:02,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 11:32:02,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2023-12-25 11:32:02,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 11:32:04,694 INFO L225 Difference]: With dead ends: 1320830 [2023-12-25 11:32:04,694 INFO L226 Difference]: Without dead ends: 910188 [2023-12-25 11:32:04,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 11:32:04,985 INFO L413 NwaCegarLoop]: 1008 mSDtfsCounter, 388 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 11:32:04,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 1552 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 11:32:06,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910188 states. [2023-12-25 11:32:18,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910188 to 910186. [2023-12-25 11:32:19,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910186 states, 910185 states have (on average 1.5676966770491714) internal successors, (1426894), 910185 states have internal predecessors, (1426894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:32:24,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910186 states to 910186 states and 1426894 transitions. [2023-12-25 11:32:24,573 INFO L78 Accepts]: Start accepts. Automaton has 910186 states and 1426894 transitions. Word has length 144 [2023-12-25 11:32:24,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 11:32:24,573 INFO L495 AbstractCegarLoop]: Abstraction has 910186 states and 1426894 transitions. [2023-12-25 11:32:24,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:32:24,573 INFO L276 IsEmpty]: Start isEmpty. Operand 910186 states and 1426894 transitions. [2023-12-25 11:32:25,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-25 11:32:25,244 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 11:32:25,244 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 11:32:25,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2023-12-25 11:32:25,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:32:25,450 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 11:32:25,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 11:32:25,450 INFO L85 PathProgramCache]: Analyzing trace with hash 615002153, now seen corresponding path program 1 times [2023-12-25 11:32:25,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 11:32:25,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [843953581] [2023-12-25 11:32:25,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 11:32:25,451 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 11:32:25,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 11:32:25,468 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 11:32:25,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-25 11:32:25,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 11:32:25,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 11:32:25,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 11:32:25,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 11:32:25,615 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 11:32:25,615 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 11:32:25,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [843953581] [2023-12-25 11:32:25,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [843953581] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 11:32:25,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 11:32:25,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 11:32:25,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104677961] [2023-12-25 11:32:25,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 11:32:25,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 11:32:25,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 11:32:25,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 11:32:25,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 11:32:25,617 INFO L87 Difference]: Start difference. First operand 910186 states and 1426894 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 11:32:38,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 11:32:38,283 INFO L93 Difference]: Finished difference Result 3057570 states and 4793847 transitions. [2023-12-25 11:32:38,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 11:32:38,293 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2023-12-25 11:32:38,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 11:32:43,964 INFO L225 Difference]: With dead ends: 3057570 [2023-12-25 11:32:43,965 INFO L226 Difference]: Without dead ends: 2272971 [2023-12-25 11:32:44,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 11:32:44,853 INFO L413 NwaCegarLoop]: 1253 mSDtfsCounter, 1125 mSDsluCounter, 1485 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1125 SdHoareTripleChecker+Valid, 2738 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 11:32:44,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1125 Valid, 2738 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 11:32:46,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2272971 states.